Bolster guide and damper.



w. s. ADAMS.

BOLSTER GUIDE AND DAMPER.

APPLICATION- FILED NOV. 7. 1913.

lflmfiggg I Patented Au 1?,1915.

- 2 SHEETS-SHEET I.

v I WMKEZM? mam mwauogm W. S. ADAMS.

BDLSTER GUIDE AND DAMPER.

APPLICATION FILED NOV-7,1913.-

l 9 1 5} Q 3%2 Patented Aug. 17, 1915.

2 SHEETS-SHEET s'rmrns Pa WALTER S. ADAMS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THEIR G. BRILL 00., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

BOLSTER GUIDE AND DAMPER.

To all'whom it may concern:

Be it known that I, WALTER S. ADAMS, a citizen of the United States, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Bolster Guides and Dampers, of which the following is a specification. q g

The object of my invention is to provide a device of this class which will eliminate the necessity of using chafing plates between a truck bolster and the truck transoms, and to provide a means which will prevent the bolster from excessive swinging on its sup"- porting links in the direction of its length and transversely of the truck,,but which will not prevent it from moving from one position to another, as may be required, by the conditions of service. v

At the present time bolsters frequently wing too freely, so that the'car body which is supported by them is subject to unnecessary transverse vibration. All such vibrations are overcome by my invention, one embodiment of which will hereinafter be more particularly set forth.

For a more particular description of my invention, reference is to behad to the accompanying drawing, forming a part hereof, in whichbodying my invention; Fig. 2 is a side elevation of the same; Fig. 3 is a sectional view, taken on the line 33 of Fig. 1, looking in the direction of the arrows; Fig. 4 is a perspective view of one end of a bolster, adapted to receive my improvement; Fig. 5 shows a pin adapted to enter such a bolster; Fig. 6 shows a pin adapted to be secured to the truck frame; Fig. 7 shows a block adapted to fit on either of the pins shown in Figs. 5 or 6; Fig. 8 shows a bolt adapted to go through the block of Fig. 7; and Fig. 9 shows a link which-forms one of a pair, the pair being secured to the blocks, one of which is shown in Fig. 7 and secured by the bolt shown in Fig. 8.

Throughout the various views of the drawings, similar reference characters designate similar parts.

The truck 1, which may be of conventional or desired construction, is provided with side frame a, pedestals a, wheels I) and axle boxes 0. Gusset plates d are bolted to the side frame a, and are also secured to Patented Aug. 1'7, 1 .915.

transoms e, the transoms being secured together by a tie-bar f bolted to the sides of the saine and to' the side-frames.

A bolster 2 is supported in any suitable way from the frame 3, so that the bolster 2 can move, in the absence of the mechanism below described, with the usual freedom of movement in the direction of its length. To

hold this bolster free and keep it out of through which extends a perforation is, for

the reception of-the king bolt. The bolster tapers toward its ends and extending up for th1s tapered portion near each end is a pro- JBCtlOIl 1, for the mounting of, the bearings m.

Any suitable spring or other equivalent means for movably supporting the bolster maybe employed, so that it may have the usual vertical and lateralplay between the transoms. The one shown herein is for illustrative purposesmainly, and is as follows: At each end of the bolsteris a semiclrcular portion n, provided with a wall 0, Figure 1 is a plan view of a structure emthis portion n acting as a seat for a spring p,

supported on a plate got any other desired portion of the truck which will efliciently support the bolster. The bolster may be supported by springs and links to allow of a swinging movement transversely of the truck-frame, and these links may be supported from the transoms or from the truck side frame in the conventional manner. The bolster 2 has near each end a suitableprojection 4: provided with a hole 5. This hole 5 extends clear through the bottom of the bolster and 'is filled by a pin 6 with a shoulder 7 which is driven upwardly with a tight fit so that this shoulder 7 will press against the bottom of the bolster 2. The pin has a reduced portion 8 to receive a spring,

which will be described below,'and a portion still further reduced at '9 and screw-- threaded so as to receive a nut. A block 10 witha perforation 11 fits over the pin 6 with an easy fit so that this block can-turn on said pin. This block also rests on the projection 4 and is surmounted by a spring- 12 on top of whichis a washer 13, .and this which prevents easy movement.

washer 13 is pressed against the spring 12 by means of suitable nuts 1 on the part 9 of the pin 6. The coiled spring-12 is a strong one, so that the block 10 is held against the projection 4 with a tight fit The block 10 is also provided with a second perfora tion 15 which is adapted to receive a pin 16 which has a head 17 at one end and screwthreads 18 at the other. When the pin 16 is in place, a link 19'is carried at each end thereof and on each side of the block 10, and these links 19 are pressed against this block my means of a suitable coiled spring 20 onvthe pin 16, washers 21 and suitable nuts, preferably jam nuts, 22.

The links 19 run to a second block 10, provided with a bolt 16 identical with the bolt 16 above described, and carrying the same spring, washers and nuts which clamp the links 19 against this last mentioned block. 10 in precisely the manner described above. Through a vertical perforation 11 of this second block 10 passes a bolt 23 identical at its upper end with the pin 6, provided with the same nut 14:, washer 13, and spring 12, and at its lower end it is tapered at 24 as shown in Fig. 6 and screw-threaded at 25. This taper 24 is provided so that a nut 26' can draw this pin 23 in with a tight fit formed in this case by'the gusset plates d,-

a block 27 and transom e, in the truck frame 3.

When the parts are assembled as above set forth, the nuts 14 and 22 are placed tight enough to force the respective springs under 1 them into close contact with their adjacent parts so that the links 19 and the blocks 10 y can move only with considerable friction,

less friction being required between the blocks 10 and the links 19 than between the blocks 10 and the bolster and truck frame, so that the bolster will move with less resistance in a vertical than in a horizontal plane. The amount of dampening of this movement of the bolster will depend upon the tension which is put upon the respective springs 12 and 20. This dampening device is, of course, duplicated at both ends of the bolster, or at appropriate points along the length of the bolster; and instead of having the dampening devices extending in the same direction, they may extend in directions opposite to each other.

What I claim is:

1. In a truck of the class described, a

frame and transoms, a bolster, and means I for keeping said bolster from coming in coning said bolster movement of said bolster.

2. In a car truck, the combination with a truck frame and a bolster movably supported thereby, and means moving with the bolster and connected with the truck frame for imposing a regulatable frictional resistance to the bolster movement and preventing the bolster from comingin contact with the transoms.

3. In a car truck, the combination with a truck frame, a bolster, means for resiliently supporting the bolster on the truck frame so that it may have perpendicular movement relative thereto under the influence of said support, and means connected with the bolster and truck frame for opposmovement by a regulatable friction resistance and preventing the bolster from coming in contact with the transoms.

4. In a car truck,the combination with the truck frame and bolster, the bolster spring supported on the truck frame, and a dampening device secured to the truck frame and bolster so as to permit the latter to have relative transverse and perpendicular movement and to prevent the bolster from coming in contact with the table frictional resistance upon the actions of said dampening device w1th the bolster and truck frame.

5. In, a truck of' the class described, a frame, a bolster mounted in said frame, pivoted blocks mounted on said bolster and frame, links connecting said blocks springs for causing friction between the blocks, links and the supporting means.

6. In a truck of the class described,'a frame, a bolster mounted in said frame, a projection on said bolster, a block mounted on said projection, a pivot connecting said block and projection, a spring mounted on said block and pivot and adapted to force said block into contact with said projection, and means for connecting said block with said frame.

7. In a truck of theclass described, a frame with a bolster mounted therein, a projection on said bolster, a block pivotally mounted on said projection, links pivotally connected to said block, a second blockand means for connecting said block to said links, and means for pivotally connecting said last mentioned block to said frame.

8. In a truck of the class described, a frame with a bolster mounted therein, a perforated projection on said bolster, a pin passing through said projection, a block pivotally mounted on said pin, resilient means'for pressing said block against said projection, links pivotally connected to said block, resilient means for pressing said links and block is pivoted, resilient means for pressing the said second block against said frame,

and resilient means connecting said links with said last mentioned block.

9. In a truck of the class described, a frame, a bolster mounted in said frame, a perforated projection on said bolster, a projection on the truck frame, blocks on said projections, horizontal and vertical perforations in said blocks, links connecting said blocks, and pins extending through said blocks and links.

10. In a truck of the class described, a frame, a bolstenmounted therein, a projection on 'said bolster, a projection on the .truck frame, blocks on said projections,horizontal and vertical perforations in said blocks, links connecting said blocks, horizontal pins extending through said links and blocks, vertical pins extending through said blocks, and springs, and nuts on said horizontal and vertical pins.

11. In a truck of the class described, a frame, a bolster mounted insaid frame, vertical pivots on the bolster and frame, horizontal pivots above. the bolster andframe, links connecting the horizontal pivots and means on all pivots for imposing a reg-I1 latable frictional resistance to pivotal movement.

12. In a'truck of the class described, a frame, a bolster, a vertically extending pivot on said bolster, a vertically extending pivot on the frame, a horizontal pivot above the truck frame, a horizontal pivot above the bolster, friction plates extending between 0 said horizontal pivots and springs on said pivots.

13. In a truck of the class described, a frame, .a bolster mounted therein, a projecmeans on said bolster and truck frame for dampening the movement of the bolster and links extending between the bolster and frame for preventing the bolster from coming into contact with the truck transoms.

15. In a truck of the class described, a frame having transoms, a bolster mounted in said frame between the transom, links extending between the bolster and one of the transoms for preventing the bolster from coming in contact with the transoms.

16. A truck of the class described, a frame having transoms and gusset plates, a bolster mounted in said frame between the transoms and said gusset plates, links extending between the bolster and the gusset plates for preventing the bolster from coming in contact with the transoms and gusset plates.

Signed at the city and county of Philadelphia, State of Pennsylvania, this 24 day of October, 1913.

WALTER S. ADAMS.

Witnesses:

- HENRY C. ESLING,

H. F. More 

